The leg lengths of a triangle are 2 millimeters and 2.1 millimeters and the hypotenuse is 2.9 millimeters. is this a right triangle?

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.